Do all fish experience countercurrent flow?
Homework Answers
Yes, all fishes carry out gas exchange via counter-current mechanism.
This means that water and blood flow in opposite direction. The organ for gas exchange in fish is gills. Gills have a large surface area which aids gas exchange. Gills have large protrusions known as gill lamellae. Water passes through the gills via gill lamellae. When water passes through the gills, the oxygen present in it is diffused into the fish body; and is exchanged for carbon-dioxide. Water flows in one direction only; maintaining a steep concentration of oxygen. The gills contain a large network of blood vessels; which carry oxygen deep into the body parts.
1. With the help of a diagram of nephron, describe all the requirements including ADH, countercurrent...
1. With the help of a diagram of nephron, describe all the requirements including ADH, countercurrent flow and exchange in vasa recta for the formation of concentrated urine. 2. Describe the process of concentrated urine formation in birds and mammals. (Countercurrent mechanisms, role of ADH, function of vasa recta) 3. Describe Oxy-Hb dissociation curve and factors that affect the curve. What does plateau and steep portion of the curve represent?
Can you explain this concept. I'm confused by this image Countercurrent exchange happens if veins and...
Can you explain this concept. I'm confused
by this image
Countercurrent exchange happens if veins and arteries are not next to one another (b) Blood flow with countercurrent heat exchange con 37° 29° 22° 36° 2° 21° དང་ད༌དད༽ཉགངཤ་ར་ར ༨༽ར་ TA = 5°C ANIMAL PHYSIOLOGY. Figure 8.29 2004 Sauer Associates, Inc (a) Blood flow without countercurrent heat exchange 37° 32° 28° 16° 18° 21 San TA=5°C
Which of the following is true of the countercurrent exchange system? it is more efficient than...
Which of the following is true of the countercurrent exchange system? it is more efficient than the parallel current system it depends on elements moving in opposing directions of one another it involves the transfer of oxygen it serves to maximize a diffusion gradient between water and oxygen all of these answers are true of the countercurrent system
If oceanic bacteria swim at speeds of 100 mm s-1, how big would they need to be to experience turbulent flow? Assume the kinematic viscosity is 10-6 m2 s-1. Do you think there is any chance that bacte...
If oceanic bacteria swim at speeds of 100 mm s-1, how big would they need to be to experience turbulent flow? Assume the kinematic viscosity is 10-6 m2 s-1. Do you think there is any chance that bacteria experience turbulent flow? Please show all work. I will rate if the answer is correct and well done. Thank you!
How do biologists use the parsimony method when constructing a phylogenetic tree? If there is only...
How do biologists use the parsimony method when constructing a phylogenetic tree? If there is only one true evolutionary history for any group of species, discuss the possible reasons why the taxonomists analyzing genetic data (e.g., DNA sequence data) versus those analyzing morphological data may suggest different phylogenetic relationships among the same exact group of species? 4) Describe how the agnathans differ from other fish? Compare the morphology and natural history of hagfishes and lampreys. Your answer should include (at...
Review the four stages of the conflict process. Do all persons involved in conflicts experience all...
Review the four stages of the conflict process. Do all persons involved in conflicts experience all four stages of conflict? Why or why not? How does the conflict process affect the quality of the conflict resolution?
Your fish pond has two water sources. One comes in at a flow rate of 200...
Your fish pond has two water sources. One comes in at a flow rate of 200 L/min with pH = 9 and ALK = 3 meq/L, and the other comes in at a flow rate of 100 L/min with pH = 6.5 and ALK = 1 meq/L. The two influents are mixed in a head tank before flowing into your pond. What is the ALK of water entering the fish pond and pH? (assume at 25°C)
Question 1 A forced draft countercurrent water cooling tower is to cool water from 43.3 to...
Question 1 A forced draft countercurrent water cooling tower is to cool water from 43.3 to 26.7 C. The air enters the bottom of the tower at 23.9 °C with a wet bulb temperature of 2 °C. The value of H for the flow condition is H 0.533 m the heat transfer resistance in the liquid phase h very high compared to mass transfer coefficient in the gas phase. Calculate the tower height needed if 1.5 times the minimum air...
Do you believe that all questions and problems arise from scarcity? Do you ever experience scarcity?...
Do you believe that all questions and problems arise from scarcity? Do you ever experience scarcity? Explain properly best two examples that you face from scarcity from your life. (4) marks
How do vertebrate circulatory systems differ in structure and efficiency? Use the amphibian, fish, and mammal...
How do vertebrate circulatory systems differ in structure and efficiency? Use the amphibian, fish, and mammal system for your comparison. Describe the structure of the human heart; explain the movement of blood flow through the heart, lungs, and body. Your answer should be specific. Please answer in text
Can you explain this concept. I'm confused
by this image
Countercurrent exchange happens if veins and arteries are not next to one another (b) Blood flow with countercurrent heat exchange con 37° 29° 22° 36° 2° 21° དང་ད༌དད༽ཉགངཤ་ར་ར ༨༽ར་ TA = 5°C ANIMAL PHYSIOLOGY. Figure 8.29 2004 Sauer Associates, Inc (a) Blood flow without countercurrent heat exchange 37° 32° 28° 16° 18° 21 San TA=5°C
Question 1 A forced draft countercurrent water cooling tower is to cool water from 43.3 to 26.7 C. The air enters the bottom of the tower at 23.9 °C with a wet bulb temperature of 2 °C. The value of H for the flow condition is H 0.533 m the heat transfer resistance in the liquid phase h very high compared to mass transfer coefficient in the gas phase. Calculate the tower height needed if 1.5 times the minimum air...
Most questions answered within 3 hours.
-
Rod figures that it takes an average (mean) of =20 minutes with
a standard deviation of...
asked 1 minute from now -
You have 5 ul of a pure (undiluted) culture at a concentration
of 3.6 x 106...
asked 3 minutes ago -
______ activity indicates the presence of an electron transport
chain.
1- gelatinase 2- oxidase 3- caseinase...
asked 5 minutes ago -
The molarity of a silver nitrate solution is 0.192 M. How many
grams of silver ions...
asked 19 minutes ago -
Which of the following solutes will produce a greater increase
in boiling point when it is...
asked 15 minutes ago -
true or false: Series connected electrical circuit is a voltage
divider, and voltage of each device...
asked 10 minutes ago -
A 100-W lightbulb has a resistance of about 12 Ω when cold (20
∘C) and 128...
asked 14 minutes ago -
For the asset shown in the following table, use the capital
asset pricing model to find...
asked 14 minutes ago -
If the impulse response of a circuit is a pulse y(t) = u(t) –
u(t-T), T...
asked 21 minutes ago -
Eukaryotic cells have __ which is similar to prokaryotes of
Archaea.
A Ester-linked membrane lipids
B...
asked 30 minutes ago -
true or false. If work is done on a system by it's
surroundings, its value is...
asked 35 minutes ago -
Rene Descartes establishes a dualist approach to the world.
Explain this dualism, and how it connects...
asked 41 minutes ago